Luxembourg
Republic gold "Centennial" 20 Francs 1963 MS66 NGC, cf. KM-XM2b (without ESSAI).
https://coins.ha.com/itm/luxembourg/luxembourg-republic-gold-centennial-20-francs-1963-ms66-ngc-/a/65162-98265.s?type=DA-DMC-CoinArchives-WorldCoins-65162-02262023
HID02906262019
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